/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.translator.jdbc.modeshape;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.teiid.language.ColumnReference;
import org.teiid.language.Expression;
import org.teiid.language.Function;
import org.teiid.language.NamedTable;
import org.teiid.language.SQLConstants;
import org.teiid.metadata.Column;
import org.teiid.translator.jdbc.FunctionModifier;
/**
* Function to translate ColumnReferences to selector names
* @since 7.1
*/
public class IdentifierFunctionModifier extends FunctionModifier {
public List<?> translate(Function function) {
List<Object> objs = new ArrayList<Object>();
List<Expression> parms = function.getParameters();
objs.add(function.getName().substring(function.getName().indexOf('_') + 1));
objs.add(SQLConstants.Tokens.LPAREN);
for (Iterator<Expression> iter = parms.iterator(); iter.hasNext();)
{
Expression expr = iter.next();
if (expr instanceof ColumnReference) {
boolean dotAll = false;
boolean useSelector = false;
ColumnReference cr = (ColumnReference)expr;
Column c = cr.getMetadataObject();
if (c != null) {
if ("\"mode:properties\"".equalsIgnoreCase(c.getNameInSource())) { //$NON-NLS-1$
dotAll = true;
useSelector = true;
} else if ("\"jcr:path\"".equalsIgnoreCase(c.getNameInSource())) { //$NON-NLS-1$
useSelector = true;
}
}
if (useSelector) {
NamedTable nt = ((ColumnReference)expr).getTable();
if (nt.getCorrelationName() != null) {
objs.add(nt.getCorrelationName());
} else {
objs.add(nt);
}
} else {
objs.add(expr);
}
if (dotAll) {
objs.add(".*"); //$NON-NLS-1$
}
} else {
objs.add(expr);
}
if (iter.hasNext()) {
objs.add(", "); //$NON-NLS-1$
}
}
objs.add(SQLConstants.Tokens.RPAREN);
return objs;
}
}